2-6-6-2 sound board

[Peter Webster]

Can someone tell me if the 2-4-4-2 sound module #44952 will work in the 2-6-6-2. The unit I have does not work but is different to the #44952. The unit I have has 2 numbers on it the first is  "TSU-OEM3" and the other one is #2109.

[dutchbuilder]

if i am not mistaken the 2-6-6-2 has an old school decoder with or without sound.
The 2-4-4-2 has the "new" Bachmann add on sound unit to the existing dcc decoder.
That's the difference.

Ton

[Peter Webster]

The 2-4-4-2 uses a 21 pin plug in decoder for sound. I understand that the 2-6-6-2, which when I bought it, used a similar 21 pin plug in decoder but was changed back to an 8 pin socket. Can someone advise me if they, the 21pin decoders, are the same for both locos.

[dutchbuilder]

I asume they are.
As the pinout is standard.

Ton

[Peter Webster]

I finally figured out what the problem was.
The sound board was assembled upside down as opposed to the board in the 2-4-4-2. I just turned the board upside down and the unit worked perfectly. I don't know if this is normal practise or not but it is certainly confusing.
All's that ends well
Peter Webster